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102=m+3m+m+3m
We move all terms to the left:
102-(m+3m+m+3m)=0
We add all the numbers together, and all the variables
-(+8m)+102=0
We get rid of parentheses
-8m+102=0
We move all terms containing m to the left, all other terms to the right
-8m=-102
m=-102/-8
m=12+3/4
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